Microstructure Mapping: An Approach to Quantitative Interpretation of Microstructural Evolution in Indian Fast Reactor Advanced Clad Material during Hot Forging

B. Aashranth; Santosh Kumar; Dipti Samantaray; Shaju K. Albert; Utpal Borah; A.K. Bhaduri

doi:10.4028/www.scientific.net/MSF.830-831.350

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HomeMaterials Science ForumMaterials Science Forum Vols. 830-831Microstructure Mapping: An Approach to...

Microstructure Mapping: An Approach to Quantitative Interpretation of Microstructural Evolution in Indian Fast Reactor Advanced Clad Material during Hot Forging

Abstract:

In this paper, microstructural evolution of Indian Fast Reactor Advanced Clad (IFAC-1) steel during thermo-mechanical processing has been investigated. Hot isothermal forging has been simulated in a Gleeble® thermo-mechanical simulator in the temperature range 1173-1473K and true strain rate range 0.01-100s^-1. Instability map has been developed using the stress-strain data obtained. Effect of major forging parameters on various microstructural features has been studied quantitatively. Results from this study have been used to construct various maps (‘μ-maps’) representing different aspects of microstructural evolution. An analogy between the μ-maps and instability maps provides essential insights into possible instability mechanisms operative in the material. The μ-map analysis shows potential as a tool for optimisation of industrial-scale forging parameters.

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Periodical:

Materials Science Forum (Volumes 830-831)

Pages:

350-353

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.830-831.350

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Online since:

September 2015

Authors:

B. Aashranth*, Santosh Kumar, Dipti Samantaray, Shaju K. Albert, Utpal Borah, A.K. Bhaduri

Keywords:

Austenitic Stainless Steel, Hot Forging, Instability Map, Microstructure, μ-Map

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